refactor: some nix code cleanups

lib/attrs/default.nix

@@ -1,9 +1,20 @@
-{...}: let
-  inherit (builtins) hasAttr isAttrs tryEval;
-  inputsLib = import ../../inputs/lib.nix;
-in {
-  inherit (inputsLib) recursiveUpdateList;
+{
+  foldl,
+  hasAttr,
+  isAttrs,
+  isList,
+  mergeAttrsWithFunc,
+  unique,
+  ...
+}: {
+  inherit (import ../../inputs/lib.nix) recursiveUpdateList;
 
-  throws = x: !(tryEval x).success;
+  throws = x: !(builtins.tryEval x).success;
   hasVersion = x: isAttrs x && hasAttr "version" x;
+  mergeAttrsList = list:
+    foldl (mergeAttrsWithFunc (a: b:
+      if isList a && isList b
+      then unique (a ++ b)
+      else b)) {}
+    list;
 }

lib/default.nix

@@ -2,7 +2,7 @@
   perSystem,
   inputs,
 }: let
-  attrs = import ./attrs {};
+  attrs = import ./attrs inputs.nixpkgs.lib;
   flake = import ./flake inputs;
   hypr = import ./hypr inputs.nixpkgs.lib;
   strings = import ./strings inputs.nixpkgs.lib;

lib/flake/default.nix

@@ -20,7 +20,8 @@ inputs: rec {
           inherit cudaSupport;
           allowUnfree = true;
 
-          # FIXME: Roslyn-ls uses dotnet6 https://github.com/NixOS/nixpkgs/blob/d3c42f187194c26d9f0309a8ecc469d6c878ce33/pkgs/by-name/ro/roslyn-ls/package.nix#L21
+          # FIXME: Roslyn-ls uses dotnet6
+          # https://github.com/NixOS/nixpkgs/blob/d3c42f187194c26d9f0309a8ecc469d6c878ce33/pkgs/by-name/ro/roslyn-ls/package.nix#L21
           permittedInsecurePackages =
             [
               "dotnet-core-combined"